Wood-center sweeper wheel



' Aug. 14, 1928. 1,680,950

vF. C. MASON woo]: CENTER SWEEPER WHEEL Filed July 9, 1925 17221621102 20121 1 6- Mason Patented Aug. 14, 1928.

UNITED STATES PATENT OFFICE.

FRANK C. MASON, O1 STREATOR, ILLINOIS, ASSIGNOR TO METAL STAMPINGS COR-PORATION, OF S'IBEATOR, ILLINOIS, A CORPORATION OF ILLINOIS.

WOOD-CENTER SWEEPER WHEEL.

Application filed July 9,

My invention relates to improvements in Wheels and more particularly towheels such as used for carpet sweepers, and other devices wherein it isdesirable to have a strong light weight wheel which can be manufacturedat a comparatively low cost.

The object of this invention is to provide a wheel of strong but lightweight construction, which may be manufactured prlncipally of stampedsheet metal parts and which Will have a suitable bearing provided.

In the drawings which illustrate a selected embodiment of my invention,

Fig. 1 is a plan of a portion of a. carpet sweeper having a wheelembodying my invention used therewith.

Fig. 2 is a section on the line 2-2of Figure 1, and i Fig. 3 is asection on a'diameter of my improved wheel, showing the parts as theyappear When assembled, but before being fastened together. Referring nowto the drawings, wherein I have illustrated my improved wheel applied toa carpet sweeper, 5 designates the body of a carpet sweeper having theusual bumper cushion 6 around its edges, and a wheel retaining andcushion supportlng member 7 secured to the body, one of which is locatedat each side in the case of acarpet sweeper. The wheels 8 are disposedbetween the body 5 and member 7 and are rotatably mounted on a shaft 9,which shaft may be of any suitable diameter and may be either a stubshaft secured in the body of the device, or a transversely extendingshaft having a wheel mounted on each end.

My improved wheel comprises two discs 10 and 11, preferably made ofsheet metal, having flanges 12 and 13 respectively. The internaldiameter of the flange 12 is preferably such that it will be a snug fitover the external diameter of the flange 13. The disks 10 and 11 arepreferably provided with annular inclined shoulders 25 and 26, and theseshoulders are preferably formed by pressing axial portions of the disksoutwardly so as to form inwardly facing recesses 14 and 15 in the disks10 and 11 respectively. The annular shoulders 25 and 26 are adapted toreceive the opposite ends of a suitable bearing member 16 interposedbetween the disks, the end portions of the 1925. Serial No. 42,355.

bearing member being disposed within the annular shoulders and enteringsaid in wardly facing recesses. The bearing member may be of oil soakedwood such as used in the so-called self-oiling hearings, or of any otheranalogous material and is prefer.- ably chamfered at its edges as at 17and 18 so that the respective end portions fit snugly into the recesses14 and 15. The chamfered edges of the bearing member and the in clinedshoulders 25 and 26 cooperate to center thebearing member between thedisks, and to hold the bearing member against accidental displacement.An aperture 19 in the disc 11 admits a. shaft to the bearing memberwhile the disc 10 is preferably pressed out as at 20 to form a contactpoint between the wheel and the retaining member 7. The flange 13 is ofa width substantially the same as the desired tread width of thefinished wheel, but the flange 12 is somewhat wider as shown at 21 inFigure 3.

hen the wheel is to be assembled, a pair of'discs having the abovedescribed construction are placed together as shown in Figure 3, abearing member being interposed between the recesses 14 and 15. Theoverhanging lip 21 on the outer flange 12 is then swaged inwardly overthe edge of the inner flange as at 22, Fig. 2, the inner flange 13maintaining the spacing of the discs at their periphery. The edges ofthe disc at the aperture 19 are pressed inwardly as at 23, Fig. 2, tomore securely hold the bearing member. A suitable cushion tire 24 may beapplied to the wheel, if desired.

In use, a wheel of the above described construction is placed on a shaftshown in Figure 2 and a retaining member as 7 is positioned adjacent theoutside of the wheel so that in case the whecl'tends to run oil theshaft, the contact point 20 of the wheel will abut the retaining memberand prevent the wheel from becoming disengaged, while at the same timeproducing no noticeable re tarding friction.

My improved wheel has the desirable quatappended claims, such claimsbeing construed as broadly as possible, consistent with the state of theart.

I claim as my invention:

1. A wheel comprising a pair of disks joined together at theirperipheries to form the rim of the wheel and each having an axiallydisposed circular recess, a bearing member having circular end portions,the outer edges of which are chamfered and disposed in the recess of therespective disks, said chamfered edges being effective to cause saidbearing to be substantially self-centering between the disks.

2. In combination with a wheel comprising a pair of disks joinedtogether at their peripheries to form the rim of the wheel, and eachhaving an axially disposed recess for receiving and positioning abearing member therebetween, a bearing member having a bearing apertureextending thercthrough and having its opposite ends seated in said axialrecesses, one of said disks having an aperture for admitting a shaftinto said bearing aperture and the other of said disks having a portionserving as a closure for said aperture, a shaft in said bearingaperture, and means cooperating with said closure portion for retainingthe wheel on said shaft.

3. A wheel comprising a pair of discs each having an inturned peripheralflange, one of said flanges encasing the other and swaged over the outeredge thereof to retain itthus encased, said discs having centrallydisposed circular recesses therein, and a bearing member having its endsinterlocked with said recesses, one of said discs having an axialaperture to admit a shaft to said bearing, and the other disc having anaxial contact point pressed outwardly therefrom, said discs being spacedapart at their peripheries by means of the encased flange and at theiraxes by means of the said bearing member.

4-. A wheel comprising a pair of discs each having an inturnedperipheral flange, one of said flanges encasing the other and swagedinwardly over the outer edge thereof to retain it so encased, said discshaving centrally disposed circular recesses therein and a bearing memberdisposed between said recesses, one of said discs having an axiallydisposed aperture to admit a shaft. to the bearing member and the otherdisc forming a closure at the other end of said bearing member.

5. A wheel comprising a pair of discs each having an inturned peripheralflange, one of which encases the other and is swaged inwardly over theouter edge thereof to retain it so encased, said discs having centrallydisposed circular recesses therein, and a bearing member disposedbetween said recesses, one of said discs having an axially disposedaperture to admit a shaft to the bearing member, the periphery of saidaperture being pressed inwardly to grip said bearing member, and theother disc having an axially disposed contact point pressed outwardlytherefrom, forming a closure at the other end of said bearing member.

(3. In a wheel the combination of a pair of discs having inturnedperipheral flanges, one of said flanges encasing the other and swagedthereover at its outer edge, said discs also having centrally disposedcircular recesses therein, a self-oiling bearing disposed in saidrecesses and clamped therebctween and having a bearing apertureextending therethrongh, one of said discs be ing axially apertured toadmit a shaft to said bearing aperture, and the other of said diskshaving a portion serving as a closure for the adjacent end of saidbearing aperture and whereby said wheel is adapted to be positioned onthe end of a shaft.

7. A wheel comprising a pair of discs having inturned peripheralflanges, one oncasing the other and swaged thercover at its outer edge,said discs having centrally disposed circular recesses in said discs anda self-oiling bearing member having chamfered edges disposed in saidrecesses, said chamtered edges being adapted to fit into said recessesto position said bearing member, one of said discs being axiallyapertured to admit a shaft to said bearing member, the edges of saidaperture being pressed inwardly to grip said bearing member, the otherdisc having an axial contact point pressed outwardly and forming aclosure at the other side of said bearing member.

8. In combination with a wheel comprising a pair of discs each having aninturned peripheral flange, one of which cncases and embraces the other,said discs having centrally disposed circular recesses therein, and abearing member disposed between said recesses, one of said discs beingapcrtured to admit a shaft to said bearing and the other of said discshaving an axially disposed contact point pressed outwardly therefrom; ashaft. in said bearing and a retaininp member cooperating with saidcontact point to retain said wheel on said shaft.

9. A wheel comprising a. pair of disks joined together at theirperipheries to form the rim of the wheel, each of said disks beingprovided with an annular inclined shoulder concentric with the wheel,and a bearing, member interposed between said disks and having itsopposite end portions respectively disposed within said annularshoulders, the latter being effective to cooperate with the adjacentends of the bearing member to center the same between the disks.

10. A wheel comprising a pair of disks joined together at theirperipheries to form the rim of the wheel, each of said disks having anaxial portion pressed outwardly so as to form an annular inclinedshoulder, and a bearing member interposed between said disks and havingits opposite ends respectively disposed within the annular inclinedshoulder of the adjacent disk, said shoulders being effective tocooperate with the adjacent end portions of the bearing member to centerthe same between the disks.

11. A wheel comprising a pair of disks joined at their peripheries toform the rim of the wheel, each of said disks having an axial portionpressed outwardly so as to form an annular inclined shoulder, and abearing member interposed between said disks and having circular endportions provided with chamfered outer edges, said inclined shouldersand said chamfered edges being elfective to cooperate to center thebearing member between the disks.

12. A wheel comprising a pair of disks joined together at theirperipheries to form the rim of the wheel, each of said disks beingprovided with an annularinclined shoulder concentric with the wheel, anda hearing member interposed between said disks and having chamfered endportions respectively engaging said annular inclined shoulders, wherebythe bearing member is centered between the disks.

FRANK o. MASON.

